var isNetscape4 = document.layers;
var isNetscape6 = document.getElementById && !document.all
var isNetscape = isNetscape4 || isNetscape6;
var isIE = document.all && !isNetscape;
var DHTML = document.getElementById || document.all || document.layers;


function flash(tag) { 
  document.write(tag);
}


function getStyle(nom) {
  if (isNetscape6)
    style = document.getElementById(nom).style;
  else if (isNetscape4)
    eval("style = document."+nom);
  else
    style = document.all[nom].style;
  return(style);
}


function clipping(nom, x1, y1, x2, y2) {
  if (isNetscape4) {
    getStyle(nom).clip.left = x1;
    getStyle(nom).clip.top = y1;
    getStyle(nom).clip.right = x2; 
    getStyle(nom).clip.bottom =  y2;
  }
  else if (isNetscape6)
    getStyle(nom).clip = "rect("+y1+" "+x1+" "+y2+" "+x2+")";
  else
    getStyle(nom).clip = "rect("+y1+" "+x2+" "+y2+" "+x1+")";
}

function deplacement_absolu(nom, abscisse, ordonnee) {
  if (!DHTML)
    return;
  getStyle(nom).left = abscisse;
  getStyle(nom).top = ordonnee;
}

function deplacement_relatif(nom, deltaX, deltaY) {
  if (!DHTML)
    return;
  getStyle(nom).left = parseInt(getStyle(nom).left) + deltaX;
  getStyle(nom).top = parseInt(getStyle(nom).top) + deltaY;
}

function findPos(obj) {
            var curleft = obj.offsetLeft || 0;
            var curtop = obj.offsetTop || 0;
            while (obj = obj.offsetParent) {
                    curleft += obj.offsetLeft
                    curtop += obj.offsetTop
            }
            return {x:curleft,y:curtop};
} 

function check_email(email) {
        b = true;
        if (email.lastIndexOf('@') < 1)
            b = false;
        if (email.lastIndexOf('@') > email.lastIndexOf('.'))
            b = false;
        if (email.lastIndexOf('@') == email.lastIndexOf('.')+1)
            b = false;
        if (email.length-email.lastIndexOf('.') < 3 || email.length-email.lastIndexOf('.') > 5)
            b = false;
        if (email.length<6)
            b = false;
        return(b);
    }


// retourne un objet xmlHttpRequest.
// méthode compatible entre tous les navigateurs (IE/Firefox/Opera)
function getXMLHTTP(){
  var xhr=null;
  if(window.XMLHttpRequest) // Firefox et autres
  xhr = new XMLHttpRequest();
  else if(window.ActiveXObject){ // Internet Explorer
    try {
      xhr = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {
      try {
        xhr = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (e1) {
        xhr = null;
      }
    }
  }
  else { // XMLHttpRequest non supporté par le navigateur
    return null;
  }
  return xhr;
}


function ajoutPanier(PDT_ID, QUANTITE){
  $('#contenu_panier').html('<img src="jquery/indicator.gif" alt="" />');
  $(".drag_pdt_"+PDT_ID).effect("transfer", {to: "#zonePanier", className: 'ui-effects-transfer'});
    
  $.get("panier.php", { PDT_ID: PDT_ID, QUANTITE: QUANTITE },
    function(data){ 
        $('#contenu_panier').load('selection.php', function(){
            jAlert(data, 'Information'); 
        }); 
    }); 
}


function arrondiPrix(nombre){
  nombre = Math.round(nombre*100)/100 + 0.001;
  nombre += '';
  return nombre.substr(0, nombre.indexOf('.')+3);
}

/**
 * Modifie un produit du panier en ajax
 */ 
function modifPanier(PDT_ID, QUANTITE)
{
    $('#contenu_panier').html('<img src="jquery/indicator.gif" alt="" />');
    $.get("panier.php", { PDT_ID: PDT_ID, QUANTITE_MODIF: QUANTITE },
        function(data){ 
            $('#contenu_panier').load('selection.php', function(){
                if (data != 'OK') {
                    alert(data);
                }
            });
        }); 
}

//Charge une page dynamiquement avec effet stylisé
function load_ajax_page(ele,url,slide_up){
   if(slide_up)
   {
       $(ele).slideUp("slow");
       //msg = "<div style='text-align:center;'><img src='jquery/indicator.gif' height='20' width='20'/></div>"; 
       //$(ele).html(msg);
   }
       
    var tampon = $.get(url, null, function(tampon){
            $(ele).html(tampon);
            $(ele).slideDown("slow");
        });
}

function load_ajax_page_advanced(id,ele,group_slide_up, class_to_remove, parent_name, parent_class){
    if($(ele).hasClass(class_to_remove))
    {
        $(id).slideUp("slow",function(){ 
            $(ele).removeClass(class_to_remove);
            $(parent_name).removeClass(parent_class);
            $('.zone_titre_deplie').removeClass('zone_titre_deplie');
            $(id).html('');
        });
    }
    else
    {
        $('.zone_titre_deplie').removeClass('zone_titre_deplie');
        $(group_slide_up).slideUp("slow");
        load_ajax_page(id,$(ele).attr("title"),1);
        $('.'+class_to_remove).removeClass(class_to_remove);
        parent_id = '.'+parent_class;
        $(parent_id).removeClass(parent_class);
        $(ele).addClass(class_to_remove);
        $(parent_name).addClass(parent_class);
        $(group_slide_up).html('');

    }
}